[PATCH 0 of 2 v2] Add vncviewer xm compatibility options

[Goncalo Gomes <Goncalo.Gomes@EU.CITRIX.COM>]

Changes since v1:

- Removed libxl vncviewer related dependencies

- The vncviewer function was modified to accept a domid instead of domspec;
 - main_vncviewer was updated to reflect the new use.

- A domain_create structure is now passed to the parse_config_data where required/feasible (NULL otherwise)

- xl restore now have long options for vncviewer/vncviewer-autopass; docs updated.

- Updated vnc logic to depend on create_domain

 tools/libxl/xl_cmdimpl.c  |  50 ++++++++++++++++---------------
 docs/man/xl.cfg.pod.5     |   4 ++
 docs/man/xl.pod.1         |  18 +++++++++++
 tools/libxl/xl_cmdimpl.c  |  73 ++++++++++++++++++++++++++++++++++++++--------
 tools/libxl/xl_cmdtable.c |  15 ++++++---
 5 files changed, 118 insertions(+), 42 deletions(-)